Laptop LCD screen brightness in Linux Mint 13 or Ubuntu 12.04

I recently set up a Linux workstation and based on my lookup on best distributions available, two came to fore: Ubuntu 12.04 and Linux Mint 13 (Maya). Ubuntu has always been a fantastic Linux distro, but as I learned Linux Mint is actually based off of Ubuntu and did a better job at being a full featured OS, I decided to get it setup on my desktop. I have been very pleased so far!
One of the issues faced was inability to control brightness of the screen. I could not do say from the keys on the keyboard and neither did system settings work. The fix was easy as I learned about it on other forums. Here is the link to fix the problem:http://shellboy.com/linux-mint-13-on-dell-xps-15-brightness-keys-not-working.html